单项选择题

Passage One Questions 11 to 14 are based on the passage you have just heard.

A．There is a danger of accidents on the line.
B．There is no danger of accidents on the line.
C．Their speeds will be automatically fixed by the computers.
D．One train will keep a safe distance from the other trains.
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单项选择题
A．To drive the train after it is started automatically.B．To start the train and to drive it when necessary.C．To take care of the passengers on the train.D．To send commanding signals to the command spot.
A．To drive the train after it is started automatically.
B．To start the train and to drive it when necessary.
C．To take care of the passengers on the train.
D．To send commanding signals to the command spot.
单项选择题
A．Computer shopping will still be unrealistic.B．Though time-saving, computer shopping might make people lazy.C．Though convenient, computer shopping may be too dull.D．Computer shopping will eventually destroy old tradition.
A．Computer shopping will still be unrealistic.
B．Though time-saving, computer shopping might make people lazy.
C．Though convenient, computer shopping may be too dull.
D．Computer shopping will eventually destroy old tradition.
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